ES2388519B1 - STAINING SYSTEM FOR CHANNEL SECTION JOINTS FOR GRID CABLES, IMPROVED - Google Patents

Abstract

Improvements introduced in the patent application 200930262 for "Stapling system for joining sections of channel for grid cables". # For joining sections (2) of cable channel, clips (3) with a first and a second portion of clip (30, 31) that fit tightly into the vertical and horizontal branches (210, 211) of the U-wire rods (21) at the ends of adjacent sections (2). The staple portions (30, 31) are provided with a general W shape and have respective C-shaped longitudinal grooves (300, 310) to fit the wire rods; a respective central portion (301, 311) that joins said grooves and configures respective protuberances (3010, 3110); as well as respective fin sections (302, 312) extending from its outer edges of the grooves. Furthermore, said sections of fin have respective ends (3020, 3120) in the form of a hook to fit in a respective manner in the longitudinal rods (20) that form the side walls and the bottom wall of the cable channel and the hook ends being of the first staple portion open in the opposite direction to the hook ends (3120) of the second staple portion (31).

Description

Improvements introduced in patent application 200930262 per "; Stapling system for joining sections of channel for grid cables."

Scope and prior art

As reported in the main patent application, the invention relates in general to the laying and assembly of channels for grid cables for laying cables in all kinds of constructions and works.

In the art, channels for grid cables are known as pipes formed from a plurality of tray-shaped sections joined one after the other. Each section of the cable channel is formed by a plurality of longitudinally extending metal wire rods that are joined together by means of U-shaped metal wire rods arranged transversely and welded to the longitudinal rods, these rods forming

longitudinal

the walls lateral Y the wall from

background

of the channel.

How

be he has mentioned, for to form a

canalization

with a length determined must join

longitudinally one after another a certain number of cable channel sections. Through European Patent Document 0418167, also published as ES 2066167, a flange is known

quick connection to mount a cable channel forming at least two sections of channel. This flange is arranged as an elongated plate with a first, semi-cylindrical longitudinal groove-shaped end which is intended to fit tightly into a longitudinal rod of the cable duct, a second longitudinally-shaped end which extends in the opposite direction. to the opening of the groove of the first extremity - towards the inside of the channel for cables and pins or tongues that can be folded around a respective vertical section of the U-shaped transverse metal wire rod; when the pin or tongue is bent, with the help of a special tool, it fits into a correspondingly provided window in the body of the plate.

Since the flange according to this document is arranged longitudinally on the wire rods that form the upper part of the side walls of two contiguous cable channel sections, the conduit or cable channel resulting from the union of several sections offers a good resistance to tensile and / or torsional stresses between sections, but it suffers from resistance in relation to efforts exerted perpendicular to the direction of laying of the pipe, for example due to the weight of the wiring, which is inadequate for the consistency of the canalization. Furthermore, as the longitudinal flange of the second end of this flange extends into the cable duct, it can be constituted as a potential damage element for the cables laid on the pipe.

In European Patent Document 0973238, also published under the number ES 2279589, a channel is described for grid cables formed by sections that are mounted without the need for flanges, longitudinally hooking one end of the channel having at least two rods of U-wire transversely attached to the longitudinal wire rods and which are separated at a distance properly chosen to snap a transverse U-wire rod present at the opposite end of a contiguous section of cable channel. This snap-in joint of the complementary ends of adjacent channel sections results in adequate resistance of the resulting pipeline against stress exerted perpendicular to the pipeline direction, but this coupling is easily removable against strain efforts. torsion between sections in said pipeline laying direction, resulting in a risk of disengagement of the sections.

Object of the invention

Starting from the state of the art described above, the present patent addition is intended to provide a stapling system for connecting sections of channel for grid cables consisting of a joint clip provided as a single piece and ensuring adequate resistance to stress exerted between sections of the cable duct formed both in the direction perpendicular to the direction of laying of the pipeline and against stress

of traction and torsion in relation to said direction

of laying of the pipeline.

This objective is achieved through the

characteristics indicated in claim l. Others

5

objectives and advantages result from the characteristics

indicated in the dependent claims.

In accordance with the present addition, part of a

stapling system for joining channel sections for

grid cables, each section of channel being formed

1 o

for cables by a plurality of wire rods

longitudinal that form the side walls and the

bottom wall of the cable channel and a plurality

of U-shaped wire rods with branches

verticals and a horizontal branch that are welded

fifteen

transversely to the longitudinal rods and that

are regularly distributed along the stretch to

from its two extremes;

- said stapling system consisting of

a staple that has a first staple portion

twenty

intended to fit tightly in the branches

verticals of the U-wire rods in the

ends of two channel sections for adjacent cables and

a second staple portion intended to fit

tightly on the horizontal branch of the rods of

25

U-wire at the ends of two channel sections

for adjacent cables;

-the first and second portions are planned

of staple with general form of W that has:

two respective longitudinal grooves of

30

C-shaped cross section where they fit

   the transverse wire rods;

-

a respective central portion that extends by joining the respective longitudinal grooves and having respective protrusions configured, whose protuberances serve as additional support to the wire rods housed in said respective longitudinal grooves; Y

sections

from fin respective that be extend

since

the edges outdoor from the grooves

respective longitudinals,

said system being characterized by:

the aforementioned flap sections extend essentially parallel to the diameters of the longitudinal grooves, said flap sections tend to have generally hooked ends provided to fit tightly respectively in the longitudinal rods that form a respective side wall and the bottom wall of the cable channel and said hook ends of the first staple portion being opened in the opposite direction to the hook ends of the second staple portion, so that they engage on the respective longitudinal rods from top to bottom, and from bottom to above respectively or vice versa.

According to an additional feature of the present addition, it is an advantage when the respective hook ends are configured to fit in clip form on the respective longitudinal rods.

It is still an additional advantage according to another feature of the invention when, at least, the respective hook ends of the first

Staple portions are configured with a respective flange that serves to manually push the hook end against the respective longitudinal rod facilitating the engagement on the rod.

Brief description of the drawings

Other features and advantages of the invention will result more clearly from the description that follows made with the help of the attached drawings, referring to an example of non-limiting execution and in which:

Figure 1 schematically shows a perspective of a cable channel with two sections with

he

system from stapling from the invention in position

previous

to its mounting.

The

figures 2A to 2 C respective views in

perspective

Y raised The t eral from the staple of the system

according

the invention.

Figure 3 shows a cable channel with two sections already assembled with the help of the stapling system of the invention.

Detailed description of a preferred embodiment

As can be seen in Figures 1 and 3, a cable duct is formed by joining one after another, a plurality of cable channel sections 2 in the form of a tray on which the wiring is laid, each section 2 being formed by a plurality of longitudinal wire rods 20 forming the side walls and the bottom wall of the cable channel and a plurality of rods of

U-shaped wire 21 that is welded transversely to the longitudinal rods and that are regularly distributed along the section from the ends 22, 23 of the cable channel section 2. Additionally, it can be seen that the U-shaped rods 21, are delimited by two vertical branches 210 and a horizontal branch 211.

The stapling system, designated in general by the reference numeral 1 is constituted staples 3 of general arrangement in L arranged to fit tightly on the transverse wire rods at U 21, in particular on its vertical and horizontal branches 210 and 211 and additionally on the longitudinal rods 20 that form the side walls and the bottom wall of the cable channel, as will be explained in detail below.

It can be seen that each clip 3 is provided with a first clip portion 30 and a second clip portion 31, the first clip portion being provided to fit tightly with the vertical branches 210 of the U-wire rods 21 at the ends of two channel sections for adjacent cables; while the second staple portion 31 is provided to fit tightly on the horizontal branch 211 of the U-wire rods 21 at the ends of two channel sections for adjacent cables.

As shown in greater detail in Figures 2A to 2c and 3, both the first staple portion 30 and the second staple portion 31 are provided as a general W-shaped piece having:

-

two respective longitudinal grooves 30030 O, 310-31 O of C-shaped cross-section in which the wire rods 210-211 fit;

-

a respective central portion 301, 311 that is

extends

joining the grooves longitudinal

respective

Y that they have configured bumps

respective 3010,

3110; Y

respective fin sections 302, 312 extending from the outer edges of the respective longitudinal grooves 30, 31.

Referring still to Figures 2A to 2C, it can be seen that these fin portions 302, 312 extend essentially parallel to diameters of longitudinal grooves 300, 310.

Furthermore, said flap sections 302, 312 have respective ends 3020, 3120 in general form of hooks that serve to fit in a respective manner in the longitudinal rods 20 that form a respective side wall and the bottom wall of the cable channel. It can be further seen that the hook ends 3020 of the first staple portion 30 are open in the opposite direction to the hook ends 3120 of the second staple portion (31). In this way, the hook ends 3020, 3120 hook on the respective longitudinal rods from top to bottom, and from bottom to top respectively or vice versa in the opposite case that is not shown.

Continuing with the reference to Figures 2 A to 2C and making further reference to Figure 3 according to the invention the respective limbs

of hook 3020, 3120 are configured to fit in clip form on the respective longitudinal rods 20.

As can also be seen in the figures the

5 respective hook ends 3020 of the first staple portion 30 are configured with a respective flange 30200 which serves to manually push the hook end against the respective longitudinal rod 20 facilitating the engagement on

10 said rod. According to this system, the clips, thanks to their special configuration, can be additionally welded on the rod sections of each cable channel element so that it has a resistance

15 adequate structural. As will be readily understood by persons versed in the art, the foregoing is merely illustrative of a preferred embodiment of the invention so that they are possible

20 technical modifications of all kinds, so that the invention will only be limited by the scope of the following claims.

Claims (3)

1.-Improvements introduced in the patent application 200930262 per quot; Stapling system for joining channel sections for grid cables ;, each section of cable channel (2) being formed by a plurality of longitudinal wire rods (20 ) which form the side walls and the bottom wall of the cable channel and a plurality of U-shaped wire rods (21) with vertical branches (210) and a horizontal branch (211) that are welded transversely to the longitudinal rods and that they are distributed regularly along the section from their two ends (22, 23);

-

said stapling system (1) being constituted by a staple (3) having a first staple portion (30) provided to fit tightly into the vertical branches (210) of the U-wire rods

(21) at the ends of two channel sections for adjacent cables and a second staple portion (31) provided to fit tightly on the horizontal branch (211) of the U-wire rods (21) at the ends of two sections channel for adjacent cables;

-

the first and second staple portions (30, 31) having a general W-shape being provided having: two respective longitudinal grooves (300, 310) of C-shaped cross-section in which the transverse wire rods (21) fit ;

-

a portion central respective (301, 311) that be

extends

joining the grooves longitudinal

respective

Y that they have configured bumps

respective

(3010, 311 O), whose bumps serving

of additional support to the wire rods housed in said respective longitudinal grooves; Y

-

respective fin sections (3 02, 312) that are

extend

since the edges outdoor from the

grooves

longitudinal resp ective (30, 31),

characterized by

that

the flap sections (302, 312) extend essentially parallel to diameters of the longitudinal grooves (300, 310), said flap sections respective ends (3020, 3120) in general form of hook provided to fit respectively in the longitudinal rods (20) forming a respective side wall and the bottom wall of the cable channel and said hook ends (3020) of the first staple portion (30) being opened in the opposite direction to the hook ends (3120) of the second staple portion (31), so that they engage on the respective longitudinal rods from top to bottom, and from bottom to top respectively or vice versa. 2. Improvements introduced in the patent application 200930262 for "Stapling system for joining channel sections for grid cables", according to claim 1, characterized in that the respective hook ends (3020, 3120) are configured to fit in clip form on the respective longitudinal rods (20).
3. Improvements introduced in the patent application 200930262 for "Stapling system for joining channel sections for grid cables" according to claims 1 and 2, characterized in that the less, the respective hook ends (3020) of the first staple portion (30) are configured with a respective flange (30200) that serves to manually push the hook end against the rod
5 longitudinal (20) respective facilitating the fit on the rod.